Explication détaillée de la lecture PHP, de l'analyse des fichiers eml et de la génération de pages Web

Cet article présente principalement l'explication détaillée de la lecture PHP, de l'analyse des fichiers eml et de la génération de pages Web. Il analyse les techniques d'implémentation associées et les précautions pour la lecture, l'analyse et la conversion des fichiers eml par PHP sous forme d'exemples. code source pour référence. Les lecteurs téléchargent la référence, les amis dans le besoin peuvent se référer à

comme suit :

Exemple de lecture PHP eml, cet exemple peut analyser le fichier eml exporté en texte et enregistrer le fichier eml. attachement au serveur. Sans plus tarder, je posterai simplement le code.

<?php
// Author: richard e42083458@163.com
// gets parameters
error_reporting(E_ALL ^ (E_WARNING|E_NOTICE));
header("Content-type: text/html; charset=utf-8");
echo "<pre class="brush:php;toolbar:false">";
define(EML_FILE_PATH,&#39;./yjdata/&#39;);
//if ($filename == &#39;&#39;) $filename = &#39;21724696_niuyufu@qiaodazhao.com_ZC4422-r7GMz_R9QF3K6XUhmJOXd4c.eml&#39;;
//if ($filename == &#39;&#39;) $filename = &#39;21724696_niuyufu@qiaodazhao.com_ZC3218-dGquMgm7ytdF6HQgpSReC4c.eml&#39;;
//if ($filename == &#39;&#39;) $filename = &#39;163.eml&#39;;
//if ($filename == &#39;&#39;) $filename = &#39;166.eml&#39;;
//if ($filename == &#39;&#39;) $filename = &#39;nyf.eml&#39;;
//if ($filename == &#39;&#39;) $filename = &#39;email_header_icon.eml&#39;;
if ($filename == &#39;&#39;) $filename = &#39;20141230133705.eml&#39;;
$eml_file = EML_FILE_PATH.$filename;
if (!($content = fread(fopen(EML_FILE_PATH.$filename, &#39;rb&#39;), filesize(EML_FILE_PATH.$filename))))
  die(&#39;File not found (&#39;.EML_FILE_PATH.$filename.&#39;)&#39;);
//标题内容
$pattern="/Subject: (.*?)\n/ims";
preg_match($pattern,$content,$subject_results);
$subject = getdecodevalue($subject_results[1]);
echo "标题：".$subject;
//发件人：
$pattern="/From: .*?<(.*?)>/ims";
preg_match($pattern,$content,$from_results);
$from = $from_results[1];
echo "\n\r";
echo "发件人：".$from;
//收件人：
$pattern="/To:(.*?):/ims";
preg_match($pattern,$content,$to_results);
$pattern="/<(.*?)>/ims";
preg_match_all($pattern,$to_results[1],$to_results2);
if(count($to_results2[1])>0){
  $to = $to_results2[1];
}else{
  $pattern="/To:(.*?)\n/ims";
  preg_match($pattern,$content,$to_results);
  $to = $to_results[1];
}
echo "\n\r";
echo "收件人：";
print_r($to);
echo "\n\r";
//正文内容
$pattern = "/Content-Type: multipart\/alternative;.*?boundary=\"(.*?)\"/ims";
preg_match($pattern,$content,$results);
if($results[1]!=""){
  $seperator = "--".$results[1];
}else{
  die("boundary匹配失败");
}
$spcontent = explode($seperator, $content);
$items = array();
$keyid = 0;
$email_front_content_array = array();
foreach($spcontent as $spkey=>$item) {
  //匹配header编码等信息
  $pattern = "/Content-Type: ([^;]*?);.*?charset=(.*?)\nContent-Transfer-Encoding: (.*?)\n/ims";
  preg_match($pattern,$item,$item_results);
  if(count($item_results)==4){
    $Content_code = str_replace($item_results[0],"",$item);
    $item_results[4] = $Content_code;
    if(trim($item_results[3])=="base64"){
      $item_results[5] = base64_decode($item_results[4]);
    }
    if(trim($item_results[3])=="quoted-printable"){
      $item_results[5] = quoted_printable_decode($item_results[4]);
    }
    $item_results[5] = mb_convert_encoding($item_results[5], &#39;UTF-8&#39;, trim($item_results[2]));
    //echo $item_results[5];exit;
    $email_front_content_array[] = $item_results;
  }
}
foreach ($email_front_content_array as $email_front_content_each_key=>$email_front_content_each_value){
  if($email_front_content_each_value[1]==&#39;text/html&#39;){
    $content_html = $email_front_content_each_value[5];
    break;
  }else{
    $content_html = $email_front_content_each_value[5];
  }
}
echo "内容：";
echo "\n\r";
echo $content_html;
echo "\n\r";
//附件内容
$pattern = "/Content-Type: multipart\/mixed;.*?boundary=\"(.*?)\"/ims";
preg_match($pattern,$content,$results);
if($results[1]!=""){
  $seperator = "--".$results[1];
  $spcontent = explode($seperator, $content);
  $items = array();
  $keyid = 0;
  $email_attachment_content_array = array();
  foreach($spcontent as $spkey=>$item) {
    //匹配header编码等信息
    $pattern = "/Content-Type: ([^;]*?);.*?name=(.*?)\nContent-Transfer-Encoding: (.*?)\nContent-Disposition: attachment;.*?filename=(.*?)\n/ims";
    preg_match($pattern,$item,$item_results);
    //print_r($item_results);
    if(count($item_results)==5){
      $Content_code = str_replace($item_results[0],"",$item);
      $item_results[5] = trim($Content_code);
      if(trim($item_results[3])=="base64"){
        $item_results[6] = base64_decode($item_results[5]);
      }
      if(trim($item_results[3])=="quoted-printable"){
        $item_results[6] = quoted_printable_decode($item_results[5]);
      }
      $item_results[7] = str_replace("\"","",getdecodevalue($item_results[2]));
      $item_results[8] = str_replace("\"","",getdecodevalue($item_results[4]));
      //保存附件内容到服务器？
      //符合规范的文件名时：有后缀名时。
      if(strrpos($item_results[8], &#39;.&#39;)!==false){
        $ext = substr($item_results[8], strrpos($item_results[8], &#39;.&#39;) + 1);
        //$filename = "./yjdata/attachment/".date("YmdHis").mt_rand(10000,99999).".".trim($ext);
        $attachment_filename = "./yjdata/attachment/".trim(str_replace("\"","",getbase64code($item_results[4]))).".".trim($ext);
        mkdirs(dirname($attachment_filename));
        $fp = fopen($attachment_filename, "w+");
        if (flock($fp, LOCK_EX)) { // 进行排它型锁定
          fwrite($fp, $item_results[6]);
          flock($fp, LOCK_UN); // 释放锁定
        } else {
          //echo "Couldn&#39;t lock the file !";
        }
        fclose($fp);
        $item_results[9] = $attachment_filename;
        $email_attachment_content_array[] = $item_results;
      }
    }
  }
  //print_r($email_attachment_content_array);
}
if(count($email_attachment_content_array)>0){
  echo "附件：";
  echo "\n\r";
  //附件读取
  foreach($email_attachment_content_array as $email_attachment_content_each_key=>$email_attachment_content_each_value){
    unset($email_attachment_content_each_value[5]);
    unset($email_attachment_content_each_value[6]);
    print_r($email_attachment_content_each_value[8]);
    print_r($email_attachment_content_each_value[9]);
  }
}
function getbase64code($content){
  $pattern="/=\?GB2312\?B\?(.*?)\?=|=\?GBK\?B\?(.*?)\?=|=\?UTF-8\?B\?(.*?)\?=/ims";
  preg_match($pattern,$content,$subject_results);
  if($subject_results[1]!=""){
    $subject = $subject_results[1];
    $charset = "GB2312";
  }
  elseif($subject_results[2]!=""){
    $subject = $subject_results[2];
    $charset = "GBK";
  }
  elseif($subject_results[3]!=""){
    $subject = $subject_results[3];
    $charset = "UTF-8";
  }else{
    $subject = $content;
    $charset = "";
  }
  return $subject;
}
function getdecodevalue($content){
  $pattern="/=\?GB2312\?B\?(.*?)\?=|=\?GBK\?B\?(.*?)\?=|=\?UTF-8\?B\?(.*?)\?=/ims";
  preg_match($pattern,$content,$subject_results);
  if($subject_results[1]!=""){
    $subject = base64_decode($subject_results[1]);
    $charset = "GB2312";
  }
  elseif($subject_results[2]!=""){
    $subject = base64_decode($subject_results[2]);
    $charset = "GBK";
  }
  elseif($subject_results[3]!=""){
    $subject = base64_decode($subject_results[3]);
    $charset = "UTF-8";
  }else{
    $subject = $content;
    $charset = "";
  }
  if($charset!=""){
    $subject = mb_convert_encoding($subject, &#39;UTF-8&#39;, $charset);
  }
  return $subject;
}
function mkdirs($dir)
{
  if(!is_dir($dir))
  {
    if(!mkdirs(dirname($dir))){
      return false;
    }
    if(!mkdir($dir,0777)){
      return false;
    }
  }
  chmod($dir, 777);  //给目录操作权限
  return true;
}
?>

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